TestTraitEx5.groovy

trait Car {
  def drive() { 
    println 'Car.drive()'
  }
}

trait Bike {
  def drive() { 
    println 'Bike.drive()'
  }
}

class DrivingThing implements Car, Bike {
}


class DrivingThing2 implements Bike, Car{
}

// 最後的優先
obj = new DrivingThing()
obj.drive() // Bike.drive()

obj2 = new DrivingThing2()
obj2.drive() // Car.drive()